公开(公告)号：US12097583B2

公开(公告)日：2024-09-24

申请号：US17729603

申请日：2022-04-26

Applicant: GM Global Technology Operations LLC

Inventor： Daniel J. Wilson ,  Liang Wang ,  Qigui Wang ,  Devin R Hess ,  Michelle A. Wood ,  Ali Shabbir ,  Ronald C. Daul ,  Dale A. Gerard ,  Gregory Melekian

IPC: B23P6/04

CPC classification number: B23P6/04

Abstract: A method of repairing an ultra-large single-piece cast component of a vehicle body. The method includes the steps of locating a damaged portion of the cast component, determining an extent of the damaged portion of the ultra-large cast component, defining a cut-line sectioning off the damaged portion from an undamaged portion of the ultra-large cast component, cutting along the cut-line to excise the damaged portion from the undamaged portion of the ultra-large cast component, and joining a replacement piece to the undamaged portion of the ultra-large cast component. The replacement piece is fabricated based on the original manufacturer's geometry and dimensional data of the excised damaged portion. The undamaged portion of the ultra-large cast component remains on the vehicle body during the repair.

公开(公告)号：US12097555B2

公开(公告)日：2024-09-24

申请号：US17735337

申请日：2022-05-03

Applicant: GM Global Technology Operations LLC

Inventor： Daniel J. Wilson ,  Liang Wang ,  Qigui Wang ,  Devin R Hess ,  Michelle A. Wood ,  Ronald C. Daul ,  Ali Shabbir

IPC: B23P6/04 ,  B22C9/22 ,  B22D17/22 ,  B62D25/20

CPC classification number: B22D17/229 ,  B22C9/22 ,  B23P6/04 ,  B62D25/2063

Abstract: A design for repair casting having a repairable ultra-large single-piece casting and a replacement part. The ultra-large single-piece casting includes a main body portion, at least one predefined replaceable portion integrally cast with the main body portion, and a cut-guide delineating the predefined replaceable portion from the main body portion. The cut-guide includes a continuous channel defined on an exterior surface of the single-piece casting. The cut-guide further includes a rib extending from a channel wall on the main body portion. A damaged replaceable portion is excisable from the main-body portion by cutting through the single-piece casting along the cut-guide. The excised damaged replaceable portion may be replaced with the replacement part, which has substantially the same geometry, dimensions, and mechanical properties as an undamaged replaceable portion. The replacement part may be joined to the main body portion by mechanical means or by welding.